if it helps to put pressure on hamid karzai and other afghan officials as well as regional powers to let them know that we could be gone and they need to fix this problem and fix the problem in their region, then great. >> bing west, do you think it could be what she said, an effort to put pressure on president karzai? >> well, i hope so and i like the way celeste framed it but president karzai is so erratic that you don't know how he is going to react to anything so i prefer that we not do those things in public because he is really not that reliable. he is a little bit nutty himself. >> well, we appreciate you both talking with us. we know president karzai will be meeting with president obama on friday. bing west, celeste ward gventer, thank you. >> thank you so much, judy. >> thank you. >> brown: next, a science and medical story involving research from the frontiers of robotics. ray suarez looks at how doctors are using high tech toys to help people with special needs. >> what's your favorite game? >> "mario cart," the original. >> reporter: in a carefully monitored session that